![]() ![]() ![]() An introduction to encodingĮncoding is at the core of any programming language, and usually, we take it for granted. This article will help you prepare for when that happens and better understand what's going on behind the scenes. ![]() encode is free to change the underlying bytes of a string.Your PHP project probably involves dealing with lots of data coming from different places, such as the database or an API, and every time you need to process it, you may run into an encoding issue. Here's the catch of encode: It is very likely that while the visual display and meaning of the characters remain the same, the underlying bytes most likely will not. encode has many options and can be configured extensively. However, you can not transcode the ISO-8859-1 string to US-ASCII, unless it contains only ASCII characters (eg. Given, say, the ISO-8859-1 string "Olé!", you could use encode to convert that to UTF-8, which has all of the same characters. This is done by two methods of the String class: encode and force_encoding.Įncode is used for transcoding. You can also specify encodings for individual strings in your file (although the characters in literals must still be in the encoding declared by the magic comment, or inserted through escape sequences). However, in US-ASCII, "é" is an invalid character, and will cause an error.Įncodings and Individual Strings So the following are all valid magic comments:īecause the first snippet declares the files encoding to be ISO-8859-1 (an extension to US-ASCII that adds accented characters for languages such as French and Spanish), the character "é" is valid. The syntax of the magic comment requires only one thing: The comment contains the text coding: followed by the name of the encoding. The magic comment must come directly at the beginning of the file, or directly after a shebang comment. The usual way of changing the encoding of a file is to use a so called "magic comment". ![]() On an installation of Ruby 1.9.3 MRI on Mac OSX Lion, Ruby has the following encodings:īy default, since Ruby 2.0 all Ruby source files are encoded with UTF-8. With the advent of Ruby 1.9, Ruby now supports encodings other than US-ASCII for strings, IO, and source code. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. Archives
December 2022
Categories |